You can _______________ your data to combine two or more tables by appending values (rows) from one table to another
A . join
B . blend
C . concatenate
D . union
Answer: D
Explanation:
Explanation You can union your data to combine two or more tables by appending values (rows) from one table to another. To union your data in Tableau data source, the tables must come from the same connection. For example, suppose you have the following customer purchase information stored in three tables, separated by month. The table names are "May2016," "June2016," and "July2016."
A union of these tables creates the following single table that contains all rows from all tables.
Reference: https://help.tableau.com/current/pro/desktop/en-us/union.htm